Home / 138,868,701.76-208,337,688.88-98,007,956.56

Finding the Fourth Proportional to 138,868,701.76, 208,337,688.88 and 98,007,956.56

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Solution

The fourth proportional to 138,868,701.76, 208,337,688.88 and 98,007,956.56 is: 147,036,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,868,701.76 : 208,337,688.88 = 98,007,956.56 : x
  2. Step 2: Convert to fraction form
    138,868,701.76/208,337,688.88 = 98,007,956.56/x
  3. Step 3: Cross multiply
    138,868,701.76x = 208,337,688.88 × 98,007,956.56
  4. Step 4: Simplify right side
    138,868,701.76x = 20,418,751,161,561,836
  5. Step 5: Solve for x
    x = 20,418,751,161,561,836/138,868,701.76
  6. Step 6: Final answer
    x = 147,036,379.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.